IR: Implement FPVectorSub

src/backend_x64/emit_x64_vector_floating_point.cpp

@@ -0,0 +1,36 @@
+/* This file is part of the dynarmic project.
+ * Copyright (c) 2016 MerryMage
+ * This software may be used and distributed according to the terms of the GNU
+ * General Public License version 2 or any later version.
+ */
+
+#include "backend_x64/block_of_code.h"
+#include "backend_x64/emit_x64.h"
+#include "frontend/ir/basic_block.h"
+#include "frontend/ir/microinstruction.h"
+
+namespace Dynarmic::BackendX64 {
+
+using namespace Xbyak::util;
+
+template <typename Function>
+static void EmitVectorOperation(BlockOfCode& code, EmitContext& ctx, IR::Inst* inst, Function fn) {
+    auto args = ctx.reg_alloc.GetArgumentInfo(inst);
+
+    Xbyak::Xmm xmm_a = ctx.reg_alloc.UseScratchXmm(args[0]);
+    Xbyak::Xmm xmm_b = ctx.reg_alloc.UseXmm(args[1]);
+
+    (code.*fn)(xmm_a, xmm_b);
+
+    ctx.reg_alloc.DefineValue(inst, xmm_a);
+}
+
+void EmitX64::EmitFPVectorSub32(EmitContext& ctx, IR::Inst* inst) {
+    EmitVectorOperation(code, ctx, inst, &Xbyak::CodeGenerator::subps);
+}
+
+void EmitX64::EmitFPVectorSub64(EmitContext& ctx, IR::Inst* inst) {
+    EmitVectorOperation(code, ctx, inst, &Xbyak::CodeGenerator::subpd);
+}
+
+} // namespace Dynarmic::BackendX64